Latest TCS Aptitude Question SOLUTION: On the planet Oz, there are 8 days in a week- Sunday to Saturday and another day called Oz day. There are 36 hours in a day and each hour has 90 min while each minute has 60 sec. A

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(#M40001173) TCS Numerical Ability question angel Keep an EYE

On the planet Oz, there are 8 days in a week- Sunday to Saturday and another day called Oz day. There are 36 hours in a day and each hour has 90 min while each minute has 60 sec. As on earth, the hour hand covers the dial twice every day. Find the approximate angle between the hands of a clock on Oz when the time is 12:40 am.

Asked In TCS Megha (13 years ago)

Solved shekhar raj Read Solution (5)

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Read Solution (5) :

animesh paul  (13 years ago)

bhai ans habe 89 deg

36hrs a day mane the clk will b of 18hrs.
18hrs covrs 360deg
thus 1hr covrs 20deg
12 hrs covrs 12*20=240deg
ekhon,1 hr in 90min
thus in 90min the hour hand goes 20deg
tai, for 1min hr hand goes 2/9deg
sei jonne, for 40 min hour hnd goes (2/9)*40deg=80/9deg=9deg(approx)
thus hr hand covrs total of 240+9=249deg
now min hand covrs=40*4=160deg
(karon, 90min=360deg
1min=4deg)

thus angle betwn them 249-160=89deg :)

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shekhar raj  (12 years ago)

"First we are taking the hour hand"
as the hand covers the dial twice every day so..
18hr have 360 degree
1hr have 360/18 degree = 20 degree
so 12 hr have 12*20 degree=240 degree
also given 1hr = 90 min
so 90min= 20 degree
1min = 20/90 =2/9 degree
so 40 min= 40*(2/9)=8.88(aprox)
so total angel coverd by the hour hand is=240+8.88=248.88 degree
"NOW WE consider the minute hand"
90 min = 360 degree
so 1 min= 360/90=4 degree
so 40 min= 40*4= 160 degree
so finaly the angel covered by the hour hand is= 248.88 degre
and the angel covered by minute hand is = 160 degree
so the angel between the hands is= 248.88-160=88.88 or 89 degre(aprox)

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Hemanth Kumar M  (13 years ago)

use formula.. 20h-34/9m for these type of problems
where m= minutes here it is 40
and h= hours here it is 12
ans=89 deg

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veerbahadur gupta  (13 years ago)

88.88...=89
coz...
angle = (12/18*360 +40/90*20 )- 40/90*360

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suchandra raavi  (13 years ago)

Refer to the puzzle #M40000579 for ans

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